Jump seat



FIG. 1 is a perspective view of a jump seat.

FIG. 2 is a front view of the jump seat of FIG. 1.

FIG. 3 is a rear view of the jump seat of FIG. 1.

FIG. 4 is a right-side view of the jump seat of FIG. 1.

FIG. 5 is a left-side view of the jump seat of FIG. 1.

FIG. 6 is a top view of the jump seat of FIG. 1; and,

FIG. 7 is a bottom view of the jump seat of FIG. 1.

The items shown with broken lines form no part of the claimed design. 

CLAIM The ornamental design for a jump seat, as shown and described. 